Update Xenserver hotfix

Customers should use either XenCenteror the XenServer Command Line Interface (CLI) to install updates. When the installation is complete, restart the server for the update to take effect. As with any software update, back up your data before applying this hotfix. Citrix recommends updating all hosts within a pool sequentially. Upgrading of hosts should be scheduled to minimize the amount of time the pool runs in a “mixed state” where some hosts are upgraded and some are not. Running a mixed pool of updated and non-updated hosts for general operation is not supported.

how to update xenserver patches? Download the XML document from http://updates.xensource.com/XenServer/updates.xml to get the information about the XenServer Versions, details of all the patches available and also to get the list of patches available per XenServer version.

Installing the update by using XenCenter

Download the update to a known location on a computer that has XenCenter installed.

[[email protected] ~]# unzip XS62ESP1014.zip
Archive: XS62ESP1014.zip
inflating: XS62ESP1014.xsupdate
inflating: XS62ESP1014-src-pkgs.tar.bz2
[[email protected] ~]# xe patch-upload file-name=XS62ESP1014.xsupdate
4fc82e62-b938-407d-a2c6-68c8922f3ec2
Apply the hotfix to all hosts in the pool, specifying the UUID of the hotfix:
[[email protected] ~]# xe patch-pool-apply uuid=4fc82e62-b938-407d-a2c6-68c8922f3ec2
if you will apply patch only on host server then update the following command with patch upload file UUID and hostserver UUID.
[[email protected] ~]# xe patch-apply host-uuid=a1275000-e30f-454b-b1b4-0f082af4b43a uuid=4fc82e62-b938-407d-a2c6-68c8922f3ec2
The hotfix is applied to all hosts in the pool, but does not take effect until each host restarts. For each host, migrate the VMs that you wish to keep running, and shut down the remaining VMs before restarting the host.

Restart xenserver hosts.

or

If you want to run VMs and restart xapi service then Restart Toolstack

The Restart Toolstack option allows you to restart the XenServer management toolstack (also known as xapi). This toolstack controls VM lifecycle operations, host and VM networking, VM storage, user authentication, and allows the management of XenServer resource pools. xapi provides the publicly documented XenAPI Management Interface which is used by all tools that manage VMs and resource pools.